Home / 442,918.60-662,628.30-384,404.20

Finding the Fourth Proportional to 442,918.60, 662,628.30 and 384,404.20

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Solution

The fourth proportional to 442,918.60, 662,628.30 and 384,404.20 is: 575,087.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,918.60 : 662,628.30 = 384,404.20 : x
  2. Step 2: Convert to fraction form
    442,918.60/662,628.30 = 384,404.20/x
  3. Step 3: Cross multiply
    442,918.60x = 662,628.30 × 384,404.20
  4. Step 4: Simplify right side
    442,918.60x = 254,717,101,558.86
  5. Step 5: Solve for x
    x = 254,717,101,558.86/442,918.60
  6. Step 6: Final answer
    x = 575,087.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.